記録・調査報告
ロンドン自然史博物館で発見された最古のイワトコナマズSilurus lithophilus（ナマズ目ナマズ科）の標本
2017 年 64 巻 1 号 p. 59-64
詳細
2017 年 64 巻 1 号 p. 59-64
A single specimen of the catfish, Silurus lithophilus (Tomoda, 1961), was found in the collection of the Natural History Museum, London. The catalog number of the specimen (BMNH 1910.6.30.18) indicates that it was registered on 30 June 1910, long before the collection of the holotype of S. lithophilus (April 1961), previously believed to be the first collected example of the species. Accordingly, the Natural History Museum specimen represents the oldest known example of the species. It is inferred that the specimen was collected during the 6th collecting survey of Mr. Richard Gordon Smith (from November 1905 to mid 1907), the precise date not being apparent in his excerpted diary published by Ms. Victoria Manthorpe. The collection locality of the specimen was noted as Kyoto on the jar label and in the museum collection database. However, a personal tag attached by Mr. Gordon Smith noted its collection from Lake Biwa. Apparently, the specimen was purchased at Kyoto after having been originally collected at Lake Biwa.
